IRREVERSIBLE ADSORPTION ON NONUNIFORM SURFACES - THE RANDOM SITE MODEL

The random sequential adsorption (RSA) process provides a starting poi nt for the development of quantitative descriptions of the irreversibl e adsorption of proteins and other large molecules. To date, none of t he numerous theoretical and computational studies of RSA have consider ed the effect of nonuniform aperiodic substrates which are present in many physical systems. We study the irreversible adsorption of spheric al particles adsorbing on randomly distributed point sites. There exis ts an unexpected, yet simple, mapping between this process and the cor responding adsorption on a smooth, continuous surface.